4. Surgery
  5. Male reproductory tract shields or birth control devices

Jan E. Herr

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Apparatus for transmitting electric current by concentric channe

Electricity: electrical systems and devices – Electric charge generating or conducting means – For application to living beings
Patent

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Contraceptive penile cap

Surgery – Male reproductory tract shields or birth control devices
Patent

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Profile ID: LFUS-PAI-P-818359

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